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Finding the Fourth Proportional to 7,041.68, 9,710.88 and 5,253.12

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Solution

The fourth proportional to 7,041.68, 9,710.88 and 5,253.12 is: 7,244.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.68 : 9,710.88 = 5,253.12 : x
  2. Step 2: Convert to fraction form
    7,041.68/9,710.88 = 5,253.12/x
  3. Step 3: Cross multiply
    7,041.68x = 9,710.88 × 5,253.12
  4. Step 4: Simplify right side
    7,041.68x = 51,012,417.95
  5. Step 5: Solve for x
    x = 51,012,417.95/7,041.68
  6. Step 6: Final answer
    x = 7,244.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.