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Finding the Fourth Proportional to 10,810.76, 14,916.74 and 6,616.04

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Solution

The fourth proportional to 10,810.76, 14,916.74 and 6,616.04 is: 9,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,810.76 : 14,916.74 = 6,616.04 : x
  2. Step 2: Convert to fraction form
    10,810.76/14,916.74 = 6,616.04/x
  3. Step 3: Cross multiply
    10,810.76x = 14,916.74 × 6,616.04
  4. Step 4: Simplify right side
    10,810.76x = 98,689,748.51
  5. Step 5: Solve for x
    x = 98,689,748.51/10,810.76
  6. Step 6: Final answer
    x = 9,128.84

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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.