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Finding the Fourth Proportional to 6,492,702.90, 9,739,054.35 and 3,126,098.10

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Solution

The fourth proportional to 6,492,702.90, 9,739,054.35 and 3,126,098.10 is: 4,689,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,492,702.90 : 9,739,054.35 = 3,126,098.10 : x
  2. Step 2: Convert to fraction form
    6,492,702.90/9,739,054.35 = 3,126,098.10/x
  3. Step 3: Cross multiply
    6,492,702.90x = 9,739,054.35 × 3,126,098.10
  4. Step 4: Simplify right side
    6,492,702.90x = 30,445,239,299,331.73
  5. Step 5: Solve for x
    x = 30,445,239,299,331.73/6,492,702.90
  6. Step 6: Final answer
    x = 4,689,147.15

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Double scale
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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.