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Finding the Fourth Proportional to 13,798.77, 19,041.79 and 7,511.01

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Solution

The fourth proportional to 13,798.77, 19,041.79 and 7,511.01 is: 10,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798.77 : 19,041.79 = 7,511.01 : x
  2. Step 2: Convert to fraction form
    13,798.77/19,041.79 = 7,511.01/x
  3. Step 3: Cross multiply
    13,798.77x = 19,041.79 × 7,511.01
  4. Step 4: Simplify right side
    13,798.77x = 143,023,075.11
  5. Step 5: Solve for x
    x = 143,023,075.11/13,798.77
  6. Step 6: Final answer
    x = 10,364.91

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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.