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Finding the Fourth Proportional to 4,702.04, 7,053.06 and 1,239

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Solution

The fourth proportional to 4,702.04, 7,053.06 and 1,239 is: 1,858.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.04 : 7,053.06 = 1,239 : x
  2. Step 2: Convert to fraction form
    4,702.04/7,053.06 = 1,239/x
  3. Step 3: Cross multiply
    4,702.04x = 7,053.06 × 1,239
  4. Step 4: Simplify right side
    4,702.04x = 8,738,741.34
  5. Step 5: Solve for x
    x = 8,738,741.34/4,702.04
  6. Step 6: Final answer
    x = 1,858.50

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.