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Finding the Fourth Proportional to 8,798.79, 13,199.40 and 2,957.07

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Solution

The fourth proportional to 8,798.79, 13,199.40 and 2,957.07 is: 4,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.79 : 13,199.40 = 2,957.07 : x
  2. Step 2: Convert to fraction form
    8,798.79/13,199.40 = 2,957.07/x
  3. Step 3: Cross multiply
    8,798.79x = 13,199.40 × 2,957.07
  4. Step 4: Simplify right side
    8,798.79x = 39,031,549.76
  5. Step 5: Solve for x
    x = 39,031,549.76/8,798.79
  6. Step 6: Final answer
    x = 4,436.01

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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.