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Finding the Fourth Proportional to 7,182.16, 9,888.88 and 6,526.04

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Solution

The fourth proportional to 7,182.16, 9,888.88 and 6,526.04 is: 8,985.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.16 : 9,888.88 = 6,526.04 : x
  2. Step 2: Convert to fraction form
    7,182.16/9,888.88 = 6,526.04/x
  3. Step 3: Cross multiply
    7,182.16x = 9,888.88 × 6,526.04
  4. Step 4: Simplify right side
    7,182.16x = 64,535,226.44
  5. Step 5: Solve for x
    x = 64,535,226.44/7,182.16
  6. Step 6: Final answer
    x = 8,985.49

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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.