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Finding the Fourth Proportional to 4,897.72, 7,332 and 4,722.76

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Solution

The fourth proportional to 4,897.72, 7,332 and 4,722.76 is: 7,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,897.72 : 7,332 = 4,722.76 : x
  2. Step 2: Convert to fraction form
    4,897.72/7,332 = 4,722.76/x
  3. Step 3: Cross multiply
    4,897.72x = 7,332 × 4,722.76
  4. Step 4: Simplify right side
    4,897.72x = 34,627,276.32
  5. Step 5: Solve for x
    x = 34,627,276.32/4,897.72
  6. Step 6: Final answer
    x = 7,070.08

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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.