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Finding the Fourth Proportional to 9,700.56, 14,553 and 5,315.76

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Solution

The fourth proportional to 9,700.56, 14,553 and 5,315.76 is: 7,974.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,700.56 : 14,553 = 5,315.76 : x
  2. Step 2: Convert to fraction form
    9,700.56/14,553 = 5,315.76/x
  3. Step 3: Cross multiply
    9,700.56x = 14,553 × 5,315.76
  4. Step 4: Simplify right side
    9,700.56x = 77,360,255.28
  5. Step 5: Solve for x
    x = 77,360,255.28/9,700.56
  6. Step 6: Final answer
    x = 7,974.82

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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.