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Finding the Fourth Proportional to 8,307.72, 12,407.73 and 7,526.16

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Solution

The fourth proportional to 8,307.72, 12,407.73 and 7,526.16 is: 11,240.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.72 : 12,407.73 = 7,526.16 : x
  2. Step 2: Convert to fraction form
    8,307.72/12,407.73 = 7,526.16/x
  3. Step 3: Cross multiply
    8,307.72x = 12,407.73 × 7,526.16
  4. Step 4: Simplify right side
    8,307.72x = 93,382,561.22
  5. Step 5: Solve for x
    x = 93,382,561.22/8,307.72
  6. Step 6: Final answer
    x = 11,240.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.